Compare 1814 vs 1815
| Property | 1814 | 1815 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 4 |
| Prime factorization | 21 × 9071 | 31 × 51 × 112 |
| Prime factorization | 2 × 907 | 3 × 5 × 11 × 11 |
| Divisors count | 4 | 12 |
| Divisors | 1, 2, 907, 1814 | 1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815 |
| Number of properties | 1 | 0 |
| Semiprimes | 521st | |
| Roman numberals | MDCCCXIV | MDCCCXV |
| Base 2 | 111000101102 | 111000101112 |
| Base 3 | 21110123 | 21110203 |
| Base 4 | 1301124 | 1301134 |
| Base 5 | 242245 | 242305 |
| Base 6 | 122226 | 122236 |
| Base 7 | 52017 | 52027 |
| Base 8 | 34268 | 34278 |
| Base 9 | 24359 | 24369 |
| Base 10 | 181410 | 181510 |
| Base 11 | 13aa11 | 140011 |
| Base 12 | 107212 | 107312 |
| Base 13 | a9713 | a9813 |
| Base 14 | 93814 | 93914 |
| Base 15 | 80e15 | 81015 |
| Base 16 | 71616 | 71716 |